/*
 * Copyright 2003 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.taketoday.context.cglib.core;

import cn.taketoday.context.asm.ClassWriter;

public class DefaultGeneratorStrategy implements GeneratorStrategy {

  public static final DefaultGeneratorStrategy INSTANCE = new DefaultGeneratorStrategy();

  public byte[] generate(ClassGenerator cg) throws Exception {
    DebuggingClassWriter cw = getClassVisitor();
    transform(cg).generateClass(cw);
    return transform(cw.toByteArray());
  }

  protected DebuggingClassWriter getClassVisitor() throws Exception {
    return new DebuggingClassWriter(ClassWriter.COMPUTE_FRAMES);
  }

  protected byte[] transform(byte[] b) throws Exception {
    return b;
  }

  protected ClassGenerator transform(ClassGenerator cg) throws Exception {
    return cg;
  }
}
